Hi, Can't find the manual for this,(7503), although we've got alot of old stuff... No shorts that I could find, but the supply does not start , only pulses as if in a shutdown mode. I suspect a bad cap or caps. Anyone know for sure or have a 7503 ? Thanks Jim McVey McVey Alltronix 327 Broadway Newburgh Ny 12550 ph: 845 561 8383 fx: 845 561 9017 Consumer electronics & computer service. Factory authorized for over twenty brands. ----------------------------------------------------------------------------- Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/